The project documented existing drainage conditions within the Loxahatchee
Groves Water Control District and identified improvements needed to provide
flood protection and ensure compliance with discharge limitations stipulated by
the surface water management permit issued by the South Florida Water Management
District. Specific tasks within this study included:
Determine Existing Drainage Basins: The current drainage conditions
of the district were identified and documented on a regional basis. The
documentation was in the form of maps generated from CADD files based on Palm
Beach County's geographic information system database files (as provided by the
LGWCD), which were updated to identify drainage basin boundaries and primary
culvert pipes within the canal system. The culvert pipe data included pipe sizes
and invert elevations.
Determine Storm Stage Elevations: Storm stage elevations were
calculated for each drainage basin and correlated with historical data for the
existing canal system.
Identify Current Drainage Problem Areas: Historical data and
accounts were reviewed in conjunction with the data prepared in the previous
tasks to identify drainage problem areas within the district. The areas were
defined according to the anticipated solution for correction of the flooding,
and the areas were prioritized for improvement based on a weighted matrix that
incorporated a cost/benefit approach.
Establish Canal Control Elevations: The existing basins were
reviewed and analyzed to determine if they met the needs of the residents and
businesses served by the district. Proposed control elevations for the canals
were established, and the system was reviewed to determine if the overall
district drainage basin should be split in the vicinity of Okeechobee
Establish Future Design Criteria: The data analyzed in previous
tasks were used to establish design criteria for the district including items
such as discharge limitations, canal design sections, and water quality
Identify Future Improvements: Identify future district improvement
projects such as those needed to increase canal capacity and to review the
feasibility of adding pumps at the canal outfalls to the C-51 canal to aid in
the discharge of storm water in peak events. This task also reviewed upcoming
changes by SFWMD to the C-51 Canal to assess their impact on district
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